Study of the wall thermal condition effect in a lean-premixed downscaled can combustor using large-eddy simulation

D. Mira*, M. Vázquez, G. Houzeaux, S. Gövert, J.W.B. Kok, E.I. Mahiques, L. Panek

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    1 Citation (Scopus)

    Abstract

    The primary purpose of this study is to evaluate the ability of LES, with a turbulent combustion model based on steady flamelets, to predict the flame stabilization mechanisms in an industrial can combustor at full load conditions. The test case corresponds to the downscaled Siemens can combustor tested in the high pressure rig at the DLR. The effects of the wall temperature on the prediction capabilities of the codes is investigated by imposing several heat transfer conditions at the pilot and chamber walls. The codes used for this work are Alya and OpenFOAM, which are well established CFD codes in the fluid mechanics community. Prior to the simulation, results for 1-D laminar flames at the operating conditions of the combustor are compared with the detailed solutions. Subsequently, results from both codes at the mid-plane are compared against the experimental data available. Acceptable results are obtained for the axial velocity, while discrepancies are more evident for the mixture fraction and the temperature, particularly with Alya. However, both codes showed that the heat losses influence the size and length of the pilot and main flame.

    Original languageEnglish
    Title of host publicationASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition
    Subtitle of host publicationVolume 5B: Heat Transfer
    PublisherAmerican Society of Mechanical Engineers (ASME)
    Number of pages9
    Volume5B
    ISBN (Electronic)978-0-7918-4979-8
    DOIs
    Publication statusPublished - 1 Jan 2016
    EventASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016 - Seoul, Korea, Republic of
    Duration: 13 Jun 201617 Jun 2016

    Conference

    ConferenceASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016
    CountryKorea, Republic of
    CitySeoul
    Period13/06/1617/06/16

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